INTERNATIONAL  TELECOMMUNICATION  UNION

		     ITU-T RECOMMENDATION SUMMARY


Rec. No. : D.250

Title :	General  charging  and  accounting  principles  for  
	non- voice  services provided  by  interworking  between  the  
	ISDN and  existing  public  data  networks

Study Group : III - Tariff and Accounting Principles

Version : Revised

Date of adoption : 1991

Notes :	


The general principles of Recommendation D.250 are as follows:

	-	The interworking costs inherent in the ISDN should not 
		be passed on in the form of higher collection charges 
		to the customers of the existing networks.

	-	The charges applied should be appropriate to the 
		service requested vithout regard to the interworking 
		provided.

	-	The level and division of accounting rate should be 
		base on those normally applied for the international 
		network used.



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